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Data Security

Introduction

As with data security and reliability, data security is an extremely important topic within the framework of IT operations. Different methods should counteract intentional and unwanted attack scenarios. Such scenarios include, for example, the goal of system abuse, sabotage, espionage or fraud and theft of sensitive information.

Examples of tools used to achieve the aforementioned goals are programs such as computer viruses, Trojans and worms (i.a. "malware"); active processes such as spoofing, phishing, pharming, vishing or so-called denial-of-service attacks (DoS) or man-in-the-middle attacks and social engineering.

In addition to the aforementioned deliberate attack procedures, users can also gain unwanted insight into protected and confidential information if they have access and are not protected by administrative measures.

In the context of database usage and access by end users, different functions and procedures are available for data security. Depending on the scope and sensitivity of the information, the use of these functions and procedures must be configured accordingly. If necessary, therefore, the implementation of individual procedures possibly by specialized staff would make sense.

This documentation deals only with the integrated procedures and functions of the database server and the application. A selection of further procedures will be referred to accordingly; However, these cannot be explained to the necessary extent. Corresponding third-party literature is available from various sources and should be used by experienced security experts.

In particular, see for this field the [IT Baseline Protection Catalogs of BSI] (https://www.bsi.bund.de/DE/Themen/ITGrundschutz/ITGrundschutzKataloge/Inhalt/_content/kataloge.html) (Federal Office for Security in Information Technology).

The management of the Cortex database server is divided into three basic administrative areas. On one hand, in the server installation and maintenance at the operating system level, on the other hand in the server administration under the help of the remote admin and further in the configuration of the database application about the administrative functions within the CortexUniplex application.

Each of these three levels are assigned different administration tasks. As part of data security, these levels build on each other so that, for example, an administrator with Level II privileges can also gain access to Level III; he is denied changes in level I, however.

Management of the Cortex database server (CortexDB)

Level I
Operating system level
Installation and maintenance
Level II
Remote-Admin
Server-Administration
Level III
Administrative functions
for the applications
Directories
Backup
Database-Server
HTTP-Server
Database-Raw data
File System
1st part of the licensing
2nd part of the licensing
PHP-Projects
User access rights
Counter fields
Manual Backup
Restore
Reporter
Reorganization
Dataset-rights
Field-Rights
Function rights
Plugin-use
Other application settings

Connection security through encrypted data transmission


The use of the contents of a cortex database occurs in the context of interactive access, usually with the help of browser-based applications (the so-called "Web applications"). Here and in the use of interfaces on technologies of the Internet and the World Wide Web ("WWW") is used. To secure such connections, these can be encrypted using the "TLS" method (old name: "SSL").

During use via a browser, a secure connection can be recognized on the address bar. If the address is preceded by an "https", it is an encrypted connection. For this, a certificate is issued for the websites and applications to be secured, which is checked and signed by a certification authority (subject to charge). Within the common browsers, the certification authorities are stored so that signed certificates can be recognized and processed. If a web page is called with an unsigned or faulty certificate, a warning will be issued.

The CortexDB application CortexUniplex can be used via the connections described above. This requires the integration of a server certificate in the HTTP server. Via the configuration block HTTPSRV parameter" SslCertPem "the name of the certificate file has to be integrated (usually a so-called"pem"file).

[NOTE]:

The basic technology of the signed certificates allows the integration of own certification authorities in the browsers. Especially for larger environments with centralized management of browser settings for each workstation, it may be useful to create such a certification authority for your own company and use it internally.

User access rights (Level II)

Remote Admin sets the basic permissions for user accounts. This is used to configure which application a user is allowed to use. If the authorization for one of the listed applications is missing, no login with the user account is possible. An attempt is logged within the server log with a corresponding entry (error code -922, DSV_LOGIN_APPNOPERM).

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If a user is to be blocked for one or a selection of specific applications, deactivating the corresponding application(s) is sufficient. Similarly, the change of the password and / or the user name further access can be denied.

NOTE

The user ID is stored permanently for edited datasets. This shows which changes a user has made. If a user account is removed and a new account is created with the same user ID, it will appear as if the new user had made the changes. To avoid this, user accounts should only be disabled and renamed instead of deleting them.

Rights within the application (level III)

The application CortexUniplex and all functions based on it, e.g. a dashboard, allow the interactive use of the database content for reporting or manual changes. These options require user authorizations for the individual subareas. These are subdivided into function, record and field authorizations. In addition, rights of use for extensions ("Plugins") may be granted or revoked.

The allocation of the various authorizations takes place via so-called "templates". A user account uses its assigned templates to check what rights a user has. When a template is changed, it has an immediate impact on all participating user accounts.

Function rights

The assignment of the basic function rights takes place via user templates. Here, the appropriate permissions are set for the following functions.

Function Option Meaning
Deletion of datasets no deletion authorization; for own datasets; general cancellation right Defines which datasets can be deleted by a user with this template.
Archiving of datasets no archiving rights; for own datasets; general archiving law Defines which datasets can be archived by a user with this template.
Selections no access; reading permissions; edit your own selections; edit all selections Selections are a saved selection of specific datasets. The extent to which they can be read/edited determines this right.
Document templates loading templates; edit your own templates; edit all templates Templates are Word or PDF document templates that can be filled out from the application.
Selection active/inactive This feature allows cross-database content selection via configured lists and linked datasets.
Multiple Assignment active/inactive With manual data entry, datasets can be linked together. This can be done several times in one step, if this right was set.
Editing lists No access rights; only use of preset lists; Loading any lists to display data; Editing own lists; Editing all lists Lists are used to display datasets. Here, individual field contents are accessed. If a user receives the right to load any lists, the same datasets with more information can be output.
Actions in lists Export/import list definition; Print data; Export data List definitions can be passed to other databases or imported from others. Furthermore it is possible to export the data to an external file (csv/xml); In addition, a printout of a complete list as a pdf file.
Search options Universal search (with and without wildcards); predefined searches Using the universal search options, searches are made in all fields of all datasets of the entire database. This should usually be disabled for a user. Predefined searches can be used to specify exactly which fields and datasets a user is allowed to search. Each search receives a name and can therefore be assigned to a template.
Portals All; no; a selection of pre-configured portals Portals are predefined searches based on specific search criteria. These can be provided to a user, so that he always receives a current result.
Object viewer All; no; a selection Object viewers are a cross-selection of all links based on a displayed dataset.
Creation of datasets All; none; a selection of dataset types Datasets can be created manually by users. This possibility is to be restricted via this assignment of rights
Editing datasets All; none; a selection of dataset types The general editing right of datasets of the same kind can be limited here.

Dataset Rights

The authorization system for the datasets within a database is based on the contents of a dataset field (role, internally referred to as "# R") and on the definition in a user account. If one or more field contents coincide with the definition at the user, the dataset can be selected and displayed.

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The example shown shows the access (or prevented access) of a user to two datasets with different role definitions. Only the dataset whose role matches one or more of the user's access is allowed.

NOTE

If the authorization system has been activated, this only applies to datasets to which one (or more) roles have been assigned. Datasets without a role cannot be selected, displayed or edited.

Data Field Rights

Within the field templates, it is possible to specify for individual fields whether a field is visible and can be edited. In addition to the dataset rights, a user can thus be deprived of the right to see or edit individual fields, even though a dataset processing right exists.

This makes it possible to have the same datasets edited by different users without the changes affecting the contents of other users.

Plugins (Extensions)

Within the CortexDB application plugins can be integrated for a functional extension. The plugin templates therefore define which extensions a user may use with this template.